baber/WOPTO huggingface dataset:
Patent GB-765054-A (GB)
Title: Solid polymers of propylene oxide
Inventor: PRUITT MALCOLM EVERITT
IPC: C08G65/26
Filed: 1955-03-28
Abstract: Epoxides at least 50 per cent by weight of which is propylene oxide are polymerized to yield solid polymers melting above 50 DEG  C. The propylene oxide may be copolymerized with ethylene oxide, epichlorhydrin, isobutylene oxide, 1,2-epoxybutane, cis. or trans. 2,3-epoxybutane or styrene oxide.  Polymerization may be effected en masse or in a non-aqueous liquid, e.g. diethyl ether, di-isopropyl ether, petroleum ether, benzene or n-hexane.  The catalysts are certain iron compounds, e.g. hydrated ferric hydroxide, basic ferric acetate, ferric chloride hexahydrate, ferrous chloride tetrahydrate, ferric bromide, or complex compounds made by the controlled reaction of anhydrous ferric chloride with a limited amount of propylene oxide (see Group IV (b)).  Monomers may be purified by removing water with anhydrous CaSO4 and distilling.  Aldehyde may be removed by fractional distillation of the oxide in contact with alkali metal hydroxide.  The products are preferably stabilized against decomposition by incorporation of a phenol or aromatic amine antioxidant, several of which are specified.  Incorporation may be by mixing with molten resin or with solid resin preferably immediately after recrystallization while it is still soft with solvent. Products are useful for making films, which may be oriented by stretching.  Films may be made by extrusion or by casting, e.g. from a solution in tetrahydrofuran.  In examples: (1) propylene oxide was polymerized in a glass-lined autoclave by stirring with an anhydrous ferric chloride-propylene oxide complex at 80 DEG  C.  The brown rubbery solid dissolved in hot acetone was rinsed with sufficient HCl to convert the iron complex to soluble ferric chloride.  Cooled to - 20 DEG  C. the solution deposited crystals of polymer which were recrystallized from acetone.  The product had a molecular weight of 135,000. 4.41-Isopropylidene phenol was added as antioxidant and the mixture moulded to a clear film which was stretched longitudinally. (2) Ferric chloride hexahydrate was used as catalyst.  (3) Ferric hydroxide was used as catalyst.  (4) A series of polymerizations in solvents are described.  (5) Propylene oxide and epichlorhydrin were copolymerized with ferric hydroxide catalyst.  (6) and (7) Co-polymerisations are described with ethylene oxide, epichlorhydrin and styrene oxide, isobutylene oxide, 1,2-epoxy butane and cis. and trans. 2,3-epoxy butane.ALSO:Complex compounds are made by reaction of anhydrous fabric halide with a limited amount of propylene oxide. They may be mixtures of 2FeCl3.C3H6O; FeCl3.C3H6O; FeCl3.2C3H6O; and FeCl3.3C3H6O.  The products are prepared by gradually adding propylene oxide to anhydrous ferric chloride, e.g. dissolved in diethyl ether, with stirring and cooling until there is a further immediate evolution of heat.  They are catalysts for polymerizing propylene oxide (see Group IV (a)).
Patent GB-294949-A (GB)
Title: Improvements in mercury vapour arc lamps
IPC: C03C4/08
Filed: 1927-04-01
Abstract: 294,949. Gillard, F. W., and West, D. L. April 1, 1927. Low-pressure metallic-vapour apparatus.-In a mercury-vapour lamp, the, part of the envelope through which emission occurs is made of a material transparent to ultra-violet rays and opaque to visible rays, and the end bulbs, through which the electrodes pass, are made of lead glass. The emissive part is preferably made of glass containing nickel oxide, and glass of an intermediate grade is used for joining the lead glass bulbs to the emissive part. The emissive glass may be of known composition containing 50 per cent of silica, 16 per cent of potassium oxide, 25 per cent of baryta, and 9 per cent of nickel oxide. Any transparency to red rays may be reduced by adding a small amount of copper oxide. The intermediate glass consists of 50 per cent of silica, 8 per cent of potassium oxide, 37.5 per cent of baryta, and 4.5 per cent of nickel oxide. According to the second Provisional Specification, the lead glass may be coated with opaque paint.
Patent GB-625480-A (GB)
Title: Preboarding machine
IPC: D06C5/00
Filed: 1947-04-03
Abstract: <PICT:0625480/IV (c)/1> A stocking treating machine comprises a plurality of vertical stocking forms 1a pivotally mounted around a common actuator 4 which according to its elevation is capable of effecting a radial outward movement to the forms 1a.  The actuator descends under gravity and may be controlled at an intermediate elevation by a magnetic valve 20 a switch 22 and a cam element 24, which thus allows the forms 1a to be maintained in a corresponding intermediate position after they have been clothed and swung into the intermediate position by hand.  Further descent of the actuator is permitted by the manually-operated switch 23 which allows the forms to take up their working nested position.  In this position a dome is lowered over the forms and steam is introduced into the dome for the treatment of the stockings.
Patent GB-127807-A (GB)
Title: Improved Process for the Evaporation of Solutions and Apparatus therefor.
Inventor: ELIAS WIRTH-FREY
IPC: B01D1/28
Filed: 1919-04-10
Abstract: 127,807. Frey, E. Wirth-. June 3, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Vapours, utilizing for effecting further evaporation.-In evaporating solutions by means of the heat of the vapours generated, after they have been compressed, the pressure at which the evaporation is effected is reduced as the concentration increases, the temperature of the heating- vapour being kept constant. The liquor is concentrated by passage through a series of evaporators 1, 2, 3 in which successively reduced pressures are maintained by compressors 7, 18, 19 arranged in series and each communicating with the vapour space of its respective evaporator. The whole of the vapours generated are thus compressed to the same degree, and pass together from the compressor 7 through the heaters 4, 5, 6 of the evaporators
Patent GB-820790-A (GB)
Title: Amino acid
IPC: C07K5/078
Filed: 1956-06-19
Abstract: The invention comprises L-histidyl-glycine, which is prepared by detritylating N:N1-ditrityl-L-histidyl-glycine by heating it with aqueous acetic acid, removing the triphenylcarbinol by crystallization and concentrating the filtrate until crystals of L-histidyl-glycine hemihydrate are obtained.
Patent GB-214269-A (GB)
Title: Improvements in the propulsion of bicycles and other pedal-driven vehicles
IPC: B62M1/10
Filed: 1924-04-11
Abstract: 214,269. Shah, M. Y. April 11, 1923, [Convention date]. Drawings to Specification. Fly-wheels, applications of. - Bicycles and other pedal-driven vehicles are provided with a fly-wheel interposed in the transmission between the pedal cranks and the road wheel or wheels. The transmission may comprise two chains, one between the crank shaft and the fly-wheel shaft, and the other between the fly-wheel shaft ,and the road-wheel shaft. A free-wheel device is fitted on the fly-wheel shaft or on the roadwheel shaft, or on both, and a hand-operated clutch may be fitted on the fly-wheel shaft, so that the latter may be disconnected from the road wheel. The fly-wheel consists of a bicycle wheel mounted on ball bearings and fitted with a heavy rod around the rim. The road wheel may be mounted in two pairs of stays bolted and clamped at the rear of an ordinary bicycle frame. Reference has been directed by the Comptroller to Specifications 11852/89, 9399/00, and 10589/15.
Patent GB-550923-A (GB)
Title: Improvements in the manufacture of tubes
IPC: B21D11/06
Filed: 1941-07-23
Abstract: 550,923. Making Bourdon tubes. YOXALL, L. S., and CLARKE, C. W. July 23, 1941. No. 9326. [Classes 83 (ii) and 83 (iv)] Physical structure, alteration by mechanical treatment. - Metal pressure gauges or pressure increasing spring tubes may be bent or wound after soldering, brazing or welding to their union or bracket &c. so that the parts which have been annealed by soldering &c. are again hardened. The tubes may be of flat, oval or other cross-section and they may be bent or wound into spiral, helical, circular or semi-circular form. A cut length of tube B is first brazed &c. to the union C which is then screwed into a mandrel H, which is rotated so as to bend the tube against a forming roller D. The first turn is wound on a cam E placed on the union and subsequent turns are close wound, the resistance of the material spacing the turns apart when completed. The spacing may be baried bv winding with the tube a strip of pliable material such as fibre or paper, which is removed after winding.
Patent GB-1406376-A (GB)
Title: Flying guillotine shears
Inventor: BENZ W
IPC: B23D25/04
Filed: 1973-02-26
Abstract: 1406376 Flying shear SCHLOEMANN AG 26 Feb 1973 [6 March 1972] 9326/73 Heading B3W A flying shear comprises a fixed frame 9, a blade carriage 1, driven along the frame by means such as a rack and pinion (19), (20) Fig. 4, not shown, at the same speed as the moving stock, a fixed blade 2 and a blade 3 reciprocable vertically by a rotary crank shaft 4, which is independent of the carriage drive means and which is connected to the blade 3 by at least one rod 5. At least one link 6 transmits shear reaction from the carriage to the crank shaft and at least one radius member 7 pivotally connects the crank shaft 4 to the fixed frame at 8, i.e. at about the height of the axis of the crank shaft. The shaft may be driven by a motor 11 via a universal shaft 10. In the preferred drive of Figs. 3 and 4 (not shown), the crank shaft forms an integral unit with the output shaft (14) of a gear transmission (13), which constitutes the radius member, being connected via output shaft (15) to fixed bearings (16). The stock such as rolled sheet 12 is fed to the shear over rollers (25) by rollers (24) the speed of which controls the speed of the carriage drive pinion (20).
Patent GB-1164053-A (GB)
Title: A Golf Game Apparatus
Inventor: KILBUERN DENNIS
IPC: A63B69/00
Filed: 1967-02-28
Abstract: 1,164,053. Golf game apparatus. D. KILBUERN and R. R. MEADS. 5 Feb., 1968 [28 Feb., 1967], No. 9353/67. Heading A6D. A golf game apparatus, which measures the direction, initial angle of elevation, and distance of a golf shot comprises, of Figs. 1 to 4, a swing bracket 2 mounted on base 1, the bracket (bearing. a pointer to measure the direction of the shot on scale 7, a tube assembly pivoted on boss 8 which is provided with a pointer to indicate the angle of elevation of the' shot on scale 11, the tube assembly containing a compression spring to arrest the flight of the ball and to measure the distance of the shot on scales .15 which extend from the tube when the shot is made, the appro" priate scale 15 being indicated 'by scale 11. The apparatus may be used in connection with plans of target golf or golf course holes in order to play a game.
Patent GB-308614-A (GB)
Title: Process and apparatus for the manufacture of shaped objects from fusible materials
IPC: B29C43/22
Filed: 1929-03-22
Abstract: 308,614. I. G. Farbenindustrie Akt.- Ges. March 23, 1928, [Convention date]. Casting-apparatus. - Fusible materials, e.g. chemicals, resins, waxes, &c., are formed into shaped masses by means of a moving cooling surface associated with endless bands, webs or wires passing over guide rollers end co-operating with shaping or dividing dies, rollers or grids. As shown a cooling-drum a is grooved to accommodate endless wires c which pass around grooved guide rollers d, e. A roller b, which may be heated, is formed with projecting ribs &c. to subdivide the material into blocks which are removed and delivered by the wires c.
Patent GB-207117-A (GB)
Title: Improvements in otter boards
IPC: A01K73/045
Filed: 1923-04-05
Abstract: 207,117. Lebrun, F. P. C. April 5, 1923. Trawling-gear. An otter board comprises a frame 1 with fixed inclined members 2 - - 6 between the outer surfaces of the board thus providing spaces for the passage of water. A weighting shoe or a series of inclined shoes 7<1> may be fitted along the bottom edge of the board.
Patent GB-566253-A (GB)
Title: Improvements in or relating to centrifugal governors
IPC: G05D13/08
Filed: 1943-06-11
Abstract: 566,253. Governors. HAWËRTH, L. June 11, 1943, No. 9464. [Class 57] A centrifugal governor comprises balls 28 between conical or other supporting members 25, 26 driven in the same sense at slightly different speeds. The members are shown as mounted on coaxial shafts 15, 18 driven through gearing 16, 17 and 13, 14 from the driving shaft 11. The shaft 18 is axially fixed by a thrust bearing 24 carrying a bearing 19 for the shaft 15 which is capable of axial movement against the thrust of an adjustable spring 29. The shaft 15 is supported at its other end by a hollow spigot 21 ported to co-operate with ports 37 in the sleeve portion 20 of the shaft, carrying the gear. The governor controls the speed of an engine by reducing the pressure in a cylinder 40 at maximum speed and so allowing a valve 43 to open and byepass to a drain part of the fuel delivered by the gears 13, 14 acting as a fuel pump.
Patent GB-975630-A (GB)
Title: Improvements in chucking devices for automatic machine tools
IPC: B23Q3/155
Filed: 1961-03-15
Abstract: 975,630. Chucks; blanks transferring. J. A. STARK. March 15, 1961 [July 15, 1960], No. 9466/61. Heading B3B. A tool chucking device comprises a spindle having a forward end face, a collet carried coaxially around the spindle and relatively movable longitudinally from a rearward inoperative position in which it does not project beyond the forward end face of the spindle into a forward operative position in which it projects beyond said spindle end face, a toolchanger may then present a new tool for gripping by the collet by movement in only one plane. The part to be gripped, which may be a tool shank, a tool-holder 15, Fig. 4, or a stock bar, is provided with a tapered end portion 66 which is gripped by the split ends of a collet 56. The inside forward end 60 of the collet is tapered to suit the taper 66 and the corresponding outer surface 64 of the collet is tapered to match the internal taper on the chuck housing 30. This taper is generally steeper than the taper 66. The rear end of the collet carries a transverse pin 40 which passes through a slot 42 in a central cylindrical part 46 and also passes through an air piston member 44 sliding within the cylindrical part 46. On the application of pressure to the space between the piston head and a closure member 48 the piston moves to the right and moves the collet with it thus allowing the collet jaws to open and be retracted over the tool-shank &c. The jaws are brought first to a position where their ends are flush with the face of housing 30. A new tool-shank &c., may then be brought transversely into a central position opposite the collet and release of air pressure allows the compression springs 36 to move the collet outwardly when its jaws close down over the tapered end of the tool-shank &c. This movement also draws the tool-shank or holder towards the chuck and its end face is brought against the " square " face 27 of the central cylindrical part of the chuck. The engaging surfaces of the collet and tool-shank may be spherical instead of frusto-conical. Blanks transferring. Tools or tool-holders may be moved to and from the chuck by a simple transverse movement effected by a lever 18 with gripping slots 20, 21, Fig. 1, and spring- holding pads 22. In a modification the collet is opened by a fluid cylinder and closed by springs.
Patent GB-152584-A (GB)
Title: Improvements in variable speed gearing
IPC: F16H61/02
Filed: 1920-04-01
Abstract: 152,584. Carling, W. T. April 1, 1920. Variable-speed epicyclic gearing is rendered automatically variable by the division of the driving force between two opposing sets of epicyclic gears of different ratios. A worm-wheel p loose on the drum shaft c of the gearing is connected by a sleeve p<1> to a planet cage g. Planet gears i, k carried by the cage g mesh respectively with a gear h upon a sleeve a, which is the driving-element of the gearing, and with a gear l connected by a sleeve m to a like gear n. A second loose planet cage o carries a spindle s with four gears t, r, u, and v. The gear t meshes with the gear n. The gear r is connected through a trainq<7> - - q<3> to a worm q meshing with the wormwheel p. The gear u meshes with an internal ring f carried by a revoluble casing d. The gear v meshes with a gear w connected by a sleeve x to a sun gear y. A third planet cage 2 secured to the shaft c carries planet gears z, 3 meshing respectively with the gear y and with a second internal ring e upon the casing d. A fly-wheel may be used to assist the change in the speed ratio. Worm gearing may be substituted for spur gearing.
Patent GB-1072462-A (GB)
Title: Hydraulic rotary engine
Inventor: CONRAD HANS-JOACHIM
IPC: F04C2/344
Filed: 1965-03-05
Abstract: 1,072,462. Rotary fluid-actuated motors. BETEILIGUNGS-UND PATENTVERWALTUNGS G.m.b.H. March 5, 1965 [March 6, 1964], No. 9524/65. Heading F1F. In a rotary fluid-actuated motor of the axiallysliding vane type, a rotor (2), Fig. 1 (not shown), is lodged in a stationary housing (1) and sealed relative to each side thereof by a radially-flexible sealing-ring (32), Figs. 5 and 5a (not shown), situated in an annular space (40) between rings (28, 29) attached to the housing and a portion (101 or 102) of the rotor, respectively, the ring (32) being pressed against inclined surfaces or seats (30, 31) on the rings (28, 29) by the pressure of a liquid in working spaces (6 -- 9), Figs. 3 and 6 (not shown), between axially-sliding vanes (17--20) in the housing. The said rings are situated radially inwards of the vanes. Shoes (36 -- 39) are attached to, or integral with, each of the rings (28) in register with the vanes to effect sealing between adjacent working spaces by engaging with the radially-outermost surface of the associated ring (32). The shoes also allow the rings (32) to be deflected into an elliptic shape by pressures acting radially on its inner and outer surfaces in directions (74, 75) said pressures being communicated to said surfaces from the working spaces through clearance gaps (27, 41) between the rotor and the housing whereby the rings (32) only engage with the corresponding seats (30, 31) in the regions adjacent working spaces containing high-pressure liquid. A similar sealing arrangement, Figs. 8 and 9 (not shown), is provided on each side of the housing to effect sealing of the rotor radially outwards of the vanes, a ring (59) being provided in this arrangement to minimize leakage between an annular space (61) externally of a radially-flexible sealing- ring (52) and the ambient atmosphere. The ring (59) is pressed against a ring (45) on the housing by compression springs (63) and the pressure of liquid communicated to the space (61) from working spaces containing low-pressure liquid. Shoes (53 -- 56) are attached to the ring (45) in register with the vanes, the sealing-ring (52) being acted upon by pressures communicated to it from the working spaces through a clearance gap (109) and the space (61). A ring (47) supporting the ring (59) is fixed to the rotor by a pair of rings (50, 51). A further ring (48), which is mounted in the ring (47), and the ring (45) provide seats (46, 72) for the sealing-ring (52). The sealing-rings (32, 52) may have one of several different configurations in cross-section, Fig. 7 (not shown), and may be made of steel whereas the rings (28, 29, 45, 48) may be made of leadbronze. The rotor (2) comprises a hub (100) which is supported by the housing (1).
Patent GB-539172-A (GB)
Title: Pump
IPC: F04D7/06
Filed: 1940-06-03
Abstract: 539,172. Securing impellers on shafts. NASH ENGINEERING CO. June 3, 1940, No. 9709. Convention date, May 25, 1939. [Class 80 (ii)] [Also in Group XXVI] In a centrifugal or other pump, the impeller I is made of anti - corrosive material, such as glass, and its hub 75 is connected to the driving shaft C by a hollow spindle 522 keyed to the shaft and bonded to the hub by a solder &c. which enters cavities in the hub and on the outer surface of the spindle.
Patent GB-288184-A (GB)
Title: Improvements in and relating to telephonic and telegraphic transmission lines
IPC: H03F13/00
Filed: 1928-04-02
Abstract: 288,184. Habann, E. April 1, 1927, [Convention date]. Loading or otherwise modifying circuits to improve transmission. - A high- or low-frequency telephone or telegraph line has inserted at intervals in one or both conductors or in shunt circuits across the conductors crystal contacts 3 consisting, for example, of a steel point co-operating with galena or zincite, the contacts being supplied with direct current of such strength that they act as negative resistances. The directcurrent batteries 4, 5 may be located at terminal points, variable or suitably-selected resistances G ensuring that each contact receives the same strength of current in spite of voltage drop along the line. Chokes 7, 8 prevent alternating current from passing to the batteries and resistances, whilst condensers 9 limit the flow of the direct current. When the crystal contacts are inserted in shunt circuits across the line the resistances 6 are connected in series with the contacts and are bridged by condensers. By placing the crystals at regular intervals a and by choosing suitable values of this interval and of the negative resistance of the crystal contacts in accordance with formulae given in the Specification the line may be made completely free from damping. The invention may be applied to pupinized lines, one Pupin coil being inserted in series with each crystal. With such a structure, particularly when the crystals and coils are in shunt circuits across the line, the line may be brought into natural oscillation so that for high-frequency telephony no separate generator is required.
Patent GB-1063225-A (GB)
Title: Improvements in or relating to formyl indoles
Inventor: HOFMANN ALBERT
IPC: C07D209/08
Filed: 1964-03-09
Abstract: The invention comprises compounds of formula <FORM:1063225/C2/1> in which R1 and R2 both denote hydrogen or a C1-C4 alkyl group.  These compounds and others of the general formula <FORM:1063225/C2/2> in which each of the groups R11 and R12 represents a hydrogen atom, a halogen atom, an alkyl radical or an alkoxy radical are produced by reacting an aqueous solution of a compound of formula <FORM:1063225/C2/3> in which R11 and R12 have the meanings specified above, with an alkali metal hypophosphite in the presence of a Raney nickel catalyst.  The reaction is preferably carried out in an acetic acid solution in the presence of pyridine. Examples are given of the preparation of (a) 5-formyl indole, (b) 6-formyl indone, (c) 3-methyl-5-formyl indole and (d) 4-methyl-6-formyl-indole. The cyano indoles used as starting materials in the Examples (c) and (d) are prepared as follows: (c) 3-methyl-5-bromo-indole-(2)-carboxylic acid and copper-I-cyanide are heated to give 3-methyl-5-cyano indole and (d) 3,4-dimethyl-5-nitro acetanilide is saponified with acid to give 3,4-dimethyl-5-nitro-aniline which is diazotized; the diazo salt is converted with copper-I-bromide to 3,4-dimethyl-5-nitro-bromobenzene which is condensed in the presence of an alkali metal alcoholate with diethyl oxalate; the product is saponified and cyclized with sodium dithionite in alcoholic solution and the resulting 4-methyl-6-bromo-indole-(2)-carboxylic acid is heated with copper-I-cyanide in quinoline to give the required 4-methyl-6-cyano-indole.